-
Recovery and characterisation of high-pressure phases in the systems H2O ¿ NH...
The objective of this experiment is to characterise four particular high-pressure polymorphs of various hydrates discovered by us in recent years during work carried out using... -
High pressure behaviour of sulfuric acid tetrahydrate
Our previous work on sulfuric acid tetrahydrate (SAT) identified a monoclinic high-pressure polymorph, which forms at 5.35 kbar when the tetragonal low-pressure phase is warmed... -
A high pressure study of the novel hybrid improper ferroelectric HgMn7O12
We have recently discovered how a novel type of hybrid improper ferroelectricity can arise in the perovskite HgMn3Mn412. This ferroelectricity is driven by a highly unusual... -
Network compression and pressure-induced amorphisation in Zn(CN)2
Zn(CN)2 is an important material because it shows isotropic NTE over a large temperature range and to an extent more than double that of ZrW2O8. This unusual behaviour... -
PT-phase diagram of ammonium bromide
Ammonium bromide is a fundamental ionic solid that finds practical use, industrially, as a highly-effective flame retardant and also as an intermediary source of bromide in...
